A5100645783- Radioactive element chemistry and processing
- Analytical chemistry methods development
- Metal complexes synthesis and properties
- Extraction and Separation Processes
- Chemical Synthesis and Characterization
- Metal-Organic Frameworks: Synthesis and Applications
- Hydrocarbon exploration and reservoir analysis
- HVDC Systems and Fault Protection
- High-Voltage Power Transmission Systems
- Coal and Its By-products
- Nutritional Studies and Diet
- Fluid Dynamics and Thin Films
- Coal Properties and Utilization
- Lanthanide and Transition Metal Complexes
- Crystallography and molecular interactions
- Geological and Geophysical Studies
- Methane Hydrates and Related Phenomena
- Nutrition and Health in Aging
- Paleontology and Stratigraphy of Fossils
- Paleontology and Evolutionary Biology
- Simulation and Modeling Applications
- Laser-induced spectroscopy and plasma
- Advanced Sensor and Control Systems
- Heat Transfer and Boiling Studies
- Petroleum Processing and Analysis
Research Institute of Petroleum Exploration and Development
2024
China University of Mining and Technology
2024
Second Xiangya Hospital of Central South University
2024
Central South University
2016-2024
Nanjing University of Aeronautics and Astronautics
2023
Shandong University of Technology
2019
Zhejiang University
2017
Changsha University
2016
Qinghai University
2005
Xi’an University
2005
In this paper, a synergist complex of Ni(ii) with naphthalene-2-sulfonic acid (HNS) and n-hexyl 4-pyridinecarboxylate ester (LI), which are corresponding short chain analogues active synergistic extractants dinonylnaphthalene sulfonic (HDNNS) 2-ethylhexyl (4PC, LII), was prepared characterized by Nuclear Magnetic Resonance (1H-NMR), elemental analyses, Fourier Transform Infrared Spectroscopy (FT-IR) Electrospray Ionization Mass Spectrometry (ESI-MS) spectroscopic studies. Single crystals the...
Helium, a critical rare strategic resource primarily sourced from natural gas, is currently subject of intense research regarding its enrichment processes within gas reservoirs. Investigating the helium urgent and vital for advancing exploration. This study involved collection samples Qaidam, Sichuan, Junggar basins nitrogen content testing analysis. The findings were combined with studies on fractions in local international major helium-rich fields. investigation revealed strong correlation...
Inspired by the principle of heat dissipation plant leaves, a bionic flat-plate pipe with fractal grooves was designed according to veins leaves. The working is described, and three-dimensional model established. Based on volume fluid (VOF) multiphase flow continuum surface force (CSF) tension model, steady-state numerical simulation its process carried out. experimental pieces leaf were made transfer performance studied. results show that feasible, structures developed in this study can be...
In this work, to elucidate the synergistic extraction mechanism of cobalt(II) with dinonylnaphthalene sulfonic acid (HDNNS) and 2-ethylhexyl 4-pyridinecarboxylate ester (L), hexaaquacobalt(II) naphthalene-2-sulfonate (compound 1) was prepared using naphthalene-2-sulfonic (HNS, short chain analog HDNNS) di-methyl isonicotinate tetraaquacobalt(II) 2) methyl (LI, a ester) HNS; compounds were studied by single crystal X-ray diffraction. Moreover, 2 actual extracted complex further investigated...
In the present work, cobalt( II ) synergist complex with isobutyric acid ( HL I and 5‐hydroxy‐4‐octanone oxime HB ), which were corresponding short‐chain analogs of active synergistic mixture Versatic10 Lix63 (5,8‐diethyl‐7‐hydroxy‐6‐dodecanoneoxime, was prepared studied by X‐ray single‐crystal diffraction. The crystal structure showed that composition Co( 2 L a cis‐form octahedron geometry structure. Both intra intermolecular hydrogen bonding between uncoordinated carbonyl oxygen atom...
In this work, a nickel(II) synergist complex with methyl isonicotinate (B I , short chain analog of n ‐hexyl 3‐pyridinecarboxylate ester) and naphthalene‐2‐sulfonic acid (HNS, dinonylnaphthalene sulfonic acid) was synthesized studied by single‐crystal X‐ray diffraction. The crystallizes in the monoclinic P 2 1 / space group composition [Ni(H O) 4 ) ](NS) ·2H O. Ni(II) ions these crystallographically independent molecules lie on an inversion center, forming trans‐form distorted octahedral...
Multistorey vegetation was reestablished in the Middle to Late Triassic following end-Permian mass extinction, ultimately forming extensive forests worldwide. There are some cosmopolitan elements these communities, such as Neocalamites (Sphenophyta), that bear significant climatic implications. Here, we report an situ fossil forest of extinct Sphenophyta from Chang-8 member Yanchang Formation (ca. 242 Ma) North China. The pith casts more than 210 Neocalamites, ranging diameter 6 cm 35 with a...
Aiming to address whether coal-bed methane and shale gas can form helium-rich reservoirs, this paper employs geochemical research methods analyze the content of uranium (U) thorium (Th) in coal shale, as well helium reservoirs. An objective evaluation helium-generating potential helium-bearing properties is provided. It observed that although U Th significantly higher than other rocks, resulting relatively more production from radioactive decay, large amount natural generated by exerts a...
In the present work, a copper(II) synergist complex with methyl isonicotinate (LI, short chain analog of 2-ethylhexyl 4-pyridinecarboxylate ester) and isobutyric acid (HBI, Versatic10) was synthesized studied by X-ray single-crystal diffraction. The results indicated that obtained crystallizes in monoclinic C2/c space group confirmed composition [Cu(BI)2(LI)]2. crystal structure consisted centrosymmetric dimeric units, which two Cu ions are bridged pairs four carboxylate groups deprotonated...